#include <stdio.h>
int main(){
    int arr1[3][4]={
        {10,20,30,40},
        {50,60,70,80},
        {90,100,110,120}
    };
    for(int i=0;i<3;i++){
        for(int j=0;j<4;j++){
            printf("a[%d][%d]=%d\n",i,j,arr1[i][j]);
        }
    }


    int arr2[][4]={
        {10,20,30,40},
        {50,60,70,80},
        {90,100,110,120}
    };
    for(int i=0;i<3;i++){
        for(int j=0;j<4;j++){
            printf("a[%d][%d]=%d\n",i,j,arr2[i][j]);
        }
    }


    int arr3[][4]={
        10,20,30,40,
        50,60,70,80,
        90,100,110,120
    };
    for(int i=0;i<3;i++){
        for(int j=0;j<4;j++){
            printf("a[%d][%d]=%d\n",i,j,arr3[i][j]);
        }
    }
}